... device; Four Sports Usb Hub Features: *A USB interface to expand to four, small, practical, convenient, and each supply up to 500MA.*Connected ... computer without an external power supply, easy to use.*The second generation USB HUB controller.*USB2.0 interface, support USB1.0/1.1/2.0, transmission speed 1 ... Trade Plaza, 9# Fuhong Road, Futian District ,Shenzhen.China. Beetle 4 port USB 2.0 Hub